From 7dda4e5bf3f8391e3837d169d2164ab125d011cf Mon Sep 17 00:00:00 2001
From: Bryan Lee <38807139+liby@users.noreply.github.com>
Date: Tue, 22 Aug 2023 15:36:46 +0800
Subject: [PATCH] fix(is_external_link): correcting type annotation (#347)

---
 lib/is_external_link.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/is_external_link.ts b/lib/is_external_link.ts
index e3903dc9..6a526634 100644
--- a/lib/is_external_link.ts
+++ b/lib/is_external_link.ts
@@ -10,7 +10,7 @@ const cache = new Cache<boolean>();
  * @returns {Boolean} True if the link doesn't have protocol or link has same host with config.url
  */
 
-function isExternalLink(input: string, sitehost: string, exclude: string[]): boolean {
+function isExternalLink(input: string, sitehost: string, exclude?: string[]): boolean {
   return cache.apply(`${input}-${sitehost}-${exclude}`, () => {
     // Return false early for internal link
     if (!/^(\/\/|http(s)?:)/.test(input)) return false;